It would be higher
No Reaction
There would be no reaction because astatine is less reactive than bromine.
There is no chemical reaction between sod chloride solution and water, it would just dilute the sod chloride solution.
You can use a graduated cylinder or a pipette of 50 mL.
As posted, the question would logically refer to a reaction in the solid state - there is no reaction. There is also none in water solution as stearic acid is not significantly water-soluable. The reaction between the two would produce zinc stearate and water.
electrolyte.electrolyteIn solution
Almost all reaction in cells are enzymatic controlled, or I would rather not say controlled but 'driven' or 'made possible'. Enzymatic reaction are controled by e.g. temperature, pH, concentration, ions, activating and inactivating complexes, etc. but not by themselves as substance.
Perhaps the iodine solution was old and gave a false negative.
No Reaction
a really concentrated solution would undergo a reaction quiet dramatically. the colour of the solution would be darker
There would be no reaction because astatine is less reactive than bromine.
It would turn purple, showing the reaction has taken place.
This would depend on what kind of reaction you are referring to. Endothermic (heat-absorbing) reactions would slow down at lower temperatures. Exothermic (heat-releasing) reactions would gain speed at lower temperatures. Inhibitors to the reaction can slow down biological processes.
The energy needed to support the endothermic reaction is supplied by the solution; thus the solution temperaturedecreases.If the reaction were exothermic, the solution temperature would increase.
In general, cooling a solution slows the reaction. You can use the Arrhenius equation to figure out what effect a given temperature will have on a particular reaction (you'll need to know the activation energy).
dry, certainly not. as aqueous solution, but no evidence would show a double replacement reaction.
no reaction would take place